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000809001 1001_ $$0P:(DE-Juel1)143606$$aBrömmel, Dirk$$b0$$eCorresponding author$$ufzj
000809001 1112_ $$aInternational Conference on Parallel Computing$$cEdinburgh$$d2015-09-01 - 2015-09-04$$gParCo$$wUnited Kingdom
000809001 245__ $$aExtreme-scaling Applications 24/7 on JUQUEEN Blue Gene/Q
000809001 260__ $$aAmsterdam$$bIOS Press$$c2016
000809001 29510 $$aParallel Computing: On the Road to Exascale
000809001 300__ $$a817-826
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000809001 4900_ $$aAdvances in Parallel Computing$$v27
000809001 520__ $$aJülich Supercomputing Centre has offered Extreme Scaling Workshops since 2009, with the latest edition in February 2015 giving seven international code teams an opportunity to (im)prove the scaling of their applications to all 458752 cores of the JUQUEEN IBM BlueGene/Q. Each of them successfully adapted their application codes and datasets to the restricted compute-node memory and exploit the massive parallelism with up to 1.8 million processes or threads. They thereby qualified to become members of the High-Q Club which now has over 24 codes demonstrating extreme scalability. Achievements in both strong and weak scaling are compared, and complemented with a review of program languages and parallelisation paradigms, exploitation of hardware threads, and file I/O requirements.
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000809001 7001_ $$0P:(DE-Juel1)132108$$aFrings, Wolfgang$$b1$$ufzj
000809001 7001_ $$0P:(DE-Juel1)132302$$aWylie, Brian J. N.$$b2$$ufzj
000809001 773__ $$a10.3233/978-1-61499-621-7-817
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